<template>
  <div class="login">
    <div class="login_box">
      <div class="login_left">
        <img
          src="@/assets/images/login_left.png"
          alt="" />
      </div>
      <div class="login_right">
        <el-form
          label-position="top"
          ref="loginRef"
          :model="loginForm"
          :rules="loginRules"
          class="login-form">
          <h3 class="title">精准触达平台</h3>
          <el-form-item
            label="账号"
            prop="username">
            <el-input
              class="login_input"
              v-model="loginForm.username"
              type="text"
              size="large"
              auto-complete="off"
              placeholder="账号">
              <template #prefix
                ><svg-icon
                  icon-class="user"
                  class="el-input__icon input-icon"
              /></template>
            </el-input>
          </el-form-item>
          <el-form-item
            label="密码"
            prop="password">
            <el-input
              class="login_input"
              v-model="loginForm.password"
              type="password"
              size="large"
              auto-complete="off"
              placeholder="密码"
              @keyup.enter="handleLogin">
              <template #prefix
                ><svg-icon
                  icon-class="password"
                  class="el-input__icon input-icon"
              /></template>
            </el-input>
          </el-form-item>
          <el-form-item
            label="图形验证码"
            prop="code"
            v-if="captchaEnabled">
            <el-input
              class="login_input"
              v-model="loginForm.code"
              size="large"
              auto-complete="off"
              placeholder="验证码"
              style="width: 63%"
              @keyup.enter="handleLogin">
              <template #prefix
                ><svg-icon
                  icon-class="validCode"
                  class="el-input__icon input-icon"
              /></template>
            </el-input>
            <div class="login-code">
              <img
                :src="codeUrl"
                @click="getCode"
                class="login-code-img" />
            </div>
          </el-form-item>
          <el-checkbox
            class="login_checkbox"
            v-model="loginForm.rememberMe"
            style="margin: 0px 0px 25px 0px"
            >记住密码</el-checkbox
          >
          <el-form-item style="width: 100%">
            <el-button
              class="login_btn"
              :loading="loading"
              size="large"
              type="success"
              style="width: 100%"
              @click.prevent="handleLogin">
              <span v-if="!loading">登 录</span>
              <span v-else>登 录 中...</span>
            </el-button>
            <div
              style="float: right"
              v-if="register">
              <router-link
                class="link-type"
                :to="'/register'"
                >立即注册</router-link
              >
            </div>
          </el-form-item>
        </el-form>
        <img
          class="logo_right_top"
          src="@/assets/images/login_right_top.png"
          alt="加载失败" />
      </div>
    </div>
    <!--  底部  -->
    <div class="el-login-footer">
      <span></span>
    </div>
  </div>
</template>

<script setup>
import { getCodeImg } from "@/api/login";
import Cookies from "js-cookie";
import { encrypt, decrypt } from "@/utils/jsencrypt";
import useUserStore from "@/store/modules/user";

const userStore = useUserStore();
const router = useRouter();
const { proxy } = getCurrentInstance();

const loginForm = ref({
  username: "admin",
  password: "admin123",
  rememberMe: false,
  code: "",
  uuid: "",
});

const loginRules = {
  username: [{ required: true, trigger: "blur", message: "请输入您的账号" }],
  password: [{ required: true, trigger: "blur", message: "请输入您的密码" }],
  code: [{ required: true, trigger: "change", message: "请输入验证码" }],
};

const codeUrl = ref("");
const loading = ref(false);
// 验证码开关
const captchaEnabled = ref(true);
// 注册开关
const register = ref(false);
const redirect = ref(undefined);

function handleLogin() {
  proxy.$refs.loginRef.validate((valid) => {
    if (valid) {
      loading.value = true;
      // 勾选了需要记住密码设置在 cookie 中设置记住用户名和密码
      if (loginForm.value.rememberMe) {
        Cookies.set("username", loginForm.value.username, { expires: 30 });
        Cookies.set("password", encrypt(loginForm.value.password), {
          expires: 30,
        });
        Cookies.set("rememberMe", loginForm.value.rememberMe, { expires: 30 });
      } else {
        // 否则移除
        Cookies.remove("username");
        Cookies.remove("password");
        Cookies.remove("rememberMe");
      }
      // 调用action的登录方法
      userStore
        .login(loginForm.value)
        .then(() => {
          router.push({ path: redirect.value || "/" });
        })
        .catch(() => {
          loading.value = false;
          // 重新获取验证码
          if (captchaEnabled.value) {
            getCode();
          }
        });
    }
  });
}

function getCode() {
  getCodeImg().then((res) => {
    captchaEnabled.value =
      res.captchaEnabled === undefined ? true : res.captchaEnabled;
    if (captchaEnabled.value) {
      codeUrl.value = "data:image/gif;base64," + res.img;
      loginForm.value.uuid = res.uuid;
    }
  });
}

function getCookie() {
  const username = Cookies.get("username");
  const password = Cookies.get("password");
  const rememberMe = Cookies.get("rememberMe");
  loginForm.value = {
    username: username === undefined ? loginForm.value.username : username,
    password:
      password === undefined ? loginForm.value.password : decrypt(password),
    rememberMe: rememberMe === undefined ? false : Boolean(rememberMe),
  };
}

getCode();
getCookie();
</script>

<style lang="scss" scoped>
.login {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100%;
  background-image: url("@/assets/images/login-background.png");
  opacity: 1;
  background-position: center;
  background-size: cover;
  background-color: #101111;
  .login_box {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: -15vh;
    .login_left {
      width: 400px;
      height: 500px;
      img {
        width: 100%;
        height: 100%;
      }
    }
    .login_right {
      position: relative;
      .logo_right_top {
        position: absolute;
        width: 90px;
        top: 20px;
        right: 20px;
      }
    }
  }
}

.title {
  margin: 0px auto 30px auto;
  text-align: center;
  color: #fff;
  height: 50px;
  line-height: 100px;
  font-size: 26px;
}

.login-form {
  // border-radius: 6px;
  border-top-right-radius: 6px;
  border-bottom-right-radius: 6px;
  background: rbga(33, 30, 30, 1);
  width: 400px;
  height: 500px;
  padding: 25px 25px 5px 25px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  .el-input {
    height: 40px;
    input {
      height: 40px;
    }
  }
  :deep(.el-form-item__content) {
    border: 0px solid #363333 !important;
  }
  .login_input {
    border: 0px solid #363333 !important;
    :deep(.el-input__wrapper) {
      background-color: #211e1f;
      border: 0px solid #363333 !important;
    }
  }
  .login_checkbox {
    :deep(.el-checkbox__inner) {
      background-color: #211e1f;
    }
  }
  .login_btn {
    background-color: rgba(0, 196, 116, 1);
  }
  .input-icon {
    height: 39px;
    width: 14px;
    margin-left: 0px;
  }
}
.login-tip {
  font-size: 13px;
  text-align: center;
  color: #bfbfbf;
}
.login-code {
  width: 33%;
  height: 40px;
  float: right;
  img {
    cursor: pointer;
    vertical-align: middle;
  }
}
.el-login-footer {
  height: 40px;
  line-height: 40px;
  position: fixed;
  bottom: 0;
  width: 100%;
  text-align: center;
  color: #fff;
  font-family: Arial;
  font-size: 12px;
  letter-spacing: 1px;
}
.login-code-img {
  height: 40px;
  padding-left: 12px;
}
</style>
